Book light



FIG. 1 is a front and top perspective view of a book light, showing my new design;

FIG. 2 is a rear and bottom perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is another perspective view thereof, shown in an alternative position.

The dashed lines in the figures illustrate portions of the book light that form no part of the claimed design. 

CLAIM The ornamental design for a book light, as shown and described. 